Pigs were originally domesticated by people because they are so good at eating our leftovers - clearing up our waste, while converting it into valuable food (e.g. pork and bacon) and manure to keep our soil fertile.

The Pig Idea, last year’s most exciting one-off food event, took place in November in London’s historic Trafalgar Square. Seven of London’s best restaurants served over 5,000 portions of free food, using pork that had been reared on a diet of food that would otherwise have been wasted.